Apparatus for feeding sulphur dioxide or other materials in a fluid or gaseous condition



Aug. 7. wza.

C. W. HOTTMAN N APPARATUS FOR FEEDING SULPHUR DIOXIDE OR OTHER MATERIALS IN A FLUID OH GASEOUS CONDITION Filed May 2'7, 1921 I5 Sheets-Sheet 1 H HE.

Aug. 7, 1923.

C. W. HOTTMANN APPARATUS FOR FEEDING SULPHUR DIOXIDE OR OTHER MATERIALS IN A FLUID OR GASEOUS CONDITION Filed May 27 1921 3 Sheets-Sheet 2 7: FIG. 6. 3

INVENTOR ATTORNEY Aug. 7. 1923. 11,463,818

C. W. HOTTMANN A APPARATUS FOR FEEDING SULPHUR DIOXIDE OR OTHER MATERIALS IN A Puma OR GASEOUS CONDITION Filed May 27, 1921 25 Sheets-Sheet 3 ATTORNE a? N E Patented fl ng. 7,

CHARLES W. HOTTMANN, DE PHILADELPHIA, PENNSYLVANIA APPARATUS FOR FEEDING SULPHUR DIOXIDE OR OTHER MATERIALS IN A FLUID QB GASEOUS CUNDITION.

Application filed May 53?, 19%.

Dioxide or Other Materials in a Fluid or.-

(iraseous Condition, of which the following is a specification.

The present invention although not limited to such use has been more partied larly designed for the purpose of leading sulphur dioxide in the form of a gas into rendering tanks, in which the fats and-oils are to be extracted from the animal or vegetable matter which is being rendered, in order to eliminate the obnoxious odors which would otherwise be present In devices heretofore employed for this purpose it has been found to be extremely difficult to keep the joints of the moving parts sufliciently tight to prevent leakage of the sulphur dioxide into the room in which the apparatus is installed and it has also been found difficult to introduce into the rendering tanks a proper proportion of sulphur in a gaseous form.

With the above in view my invention oomprehends a. novel construction of an apparatus which is automatic in action and which provides for the proper commingling of the steam and sulphur dioxide and the introduction of such commingled gases into the rendering tank It further comprehends a novel construction and arrangement of a rotatable casing provided with a plurality of commingling chambers into each of which a desired charge of sulphur dioxide is introduced and then a desired charge of steam which serves as the vehicle to carry the sulphur gas to the desired point of utilization.

It further comprehends a novel construction and arrangement of valve mechanism which co-operates with a novel construction of a casing and novel means for effecting the rotation of the casing.

Other novel features of construction and advantage will hereinafter more fully appear in the detailed description of the invention.

Serial no. tracer.

For the purpose of illustrating my invention, l[ have shown in the accompanyin drawings a typical embodiment thereof whic is at present preferred by me, since this embodiment will be found in practice to give satisfactory and reliable results. It is, however, to be understood that the variousinstrumentalities of which my invention consists can be variously arranged and organized and that, my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents a section on line 1-1 of Figure 2 of an apparatus embodying my invention for feeding sulphur or other material.

Figure 2 represents a top plan view of the apparatus partly broken away for the sake of clearness of illustration.

Figure 3 represents a section on an enlarged scale on line 3-3 of Figure 9.

Figure 4 represents a bottom plan View of the valve head in detached position.

Figure 5 represents a section on line 55 of Figure 4:.

Figure 6 represents a top plan view of a coupling member employed.

Figure 7 represents a section on line 7-7 of Figure 6.

Figure 8 represents, in detached position, a top plan view of the feed member seen in Figure 1.

Figure 9 represents a top plan view of the steam chest with its cover removed.

Figure 10 represents a section on line 10-10 of Figure 1.

Figure 11 rep-resents a section on line 11-11 of Figure 2.

Similar numerals of reference .indic corresponding parts.

Referring to the drawings:

The framework of the apparatus may be constructed and arranged in any desired manner and as herein illustrated it consists of standards 1 preferably made of structural metal and connected together by means of the laterally extendin bars 2 and 3, in order that the standar s 1 will be properly braced. The frame carries a support 4: on which is journalled a driving in order that it may be driven by means of belt from any desired source of power. The shaft 5 carries the worm 7 which meshes with a gear 8 carried by a shaft 9 suitably mounted in the machine frame and "provided with a pinion 10 adjustablyconnected with the shaft 9. v

The gear meshes with a gear 11 connected to a shaft 12 which is supported in a journal bearing 13 and a thrust bearing 14 is preferably employed. The shaft 12 has a tight fit in the bottom 15 of a casing 16. The casing 16 is flanged at its bottom to receive fastening devices 17 which also pass through the gear 11. The bottom 15 is also provided with the bosses 18 to receive the fastening devices 19 so that the bottom 15 is secured to the casing 16 in such a manner that it will be able to withstand the internal pressure to which it is subjected.

The outer shell of the casin 16 is connected with radial ribs 20 which at their inner ends are connected with the tubular central portion 21 of the casing so that a lurality of chambers 22 are formed which in the form illustrated are closed at one end. The casing 16 has at its upper end a cover 23 which is secured to the upper flanged portion of the casing 16 by means of fastening devices 24. The cover 23 is provided with the bosses 25 through which fastening devices pass in a similar manner to that of the fastening devices 19 with respect to the bottom 15. The cover 23 has an upwardly projecting annular extension 26 which forms a steam chest 27 the upper end of which is provided with a closure 28 secured in position b means of fastening devices 29 which passt rough the closure 28 and also through the annular flange 30 at the upper end of the extension 26. I The closure 28 is apertured to receive a valve stem 31 rising from the valve 32 and a stuifing box 33 is provided in order to properly pack the joint since the casing with the steam chest revolve around the valve stem 31, which latter is stationary. The valve stem 31 is provided with a reduced neck, as at 34, in order to receive a split collar 35 which is provided with the apertured lugs 36 and with a slot 37, the collar being secured in position by means of a clamping member 38, see Figure 12, in order that the clamping collar 35 will be fixed to the valve stem 31. The clamping collar 35 is provided with an aperture 39 extending vertically. through it which is adapted to receive fastening devices 40 which also pass through the head 41. The head 41 is provided with the apertured lugs 42 through which pass the fastening devices 43 which also pass through the apertured lugs 36 of the clamping collar '35.

The valve head 41 is recessed, as at 44, see

Figure 4, in order to receive the upperend of the valve head 31, see Figure 1. The

valve head 41 is cored out to form a asaage 45 communicating with the steam in at pipe 46, with a passage 47 communicating with the inlet pipe 48 throu which the sulphur gas is introduced, witfi'a passage 49 communicating with the pipe 50, which discharges to the rendering tanks or any other desired point of utilization and with a passage 51 communicating with the pipe 52 leadin to the atmosphere. The valve stem 31' an its valve 32 are maintained stationary while the casing 16 and its adjuncts revo ve. The valve stem 31 is provided with a passage 53 in free communication with the passage 45 and the valve head 41 and with the steam chamber 27. The valve head 32 is provided with a port 54 communicating with the steam chamber 27 and at certain times registering with a port 55 there being a port 55 for each chamber 22. The port 55 communicates wit-h a pipe 56 which is carried by a fitting 57 and which has its discharge end in proximity to the bottom of its respective chamber 22. The valve head 32 is Provided with the curved passage 58, see

more particularly Figure 8, which communicates with the port 54 so that the passage or recess 58 in the bottom of the valve head 32 is at all times in free communication with the steam chamber 27.

The cover 23 is also provided with a series of ports 59 which communicate with then respective chambers 22 of the casing 16. The sulphur dioxide in the form of a gas is intro need through the pipe 48 into the passage 47 in the valve head 41 and passes therefrom .through a passage 60 and the valve stem 31 to an elongated port 61 spening. through the bottom of the valve head 32 and with which the ports 59 are adapted to register during the rotation of the casing 16 so that at the proper time each chamber 22 will receive a requisite charge of sulphur gas. The valve head 32 has a port 62 openmg through its bottom which communicates with a pasage 63 in the valvestem said passage 63 communicating with the pea sage 49 in the valve head 41 and with the pipe 50 which conducts the sulphur gas and steam to the rendering tank or other desired point of utilization.

The valve head 32 is provided with a port 64 opening through its bottom and adapted to register at certain times with the ports 59. his port 64 communicates with a pas sage 65 in the valve stem which in turn communicates by means of a passage 51 with the exhaust pipe 52 which leads to the atmosphere. The ports 64 and 51 are in communication by means of a passage 66 which serves as a leak port to permit the steam remaining in the chamber 22 to pass therefrom to the atmosphere during the meagre time the sulphur dioxide is being admitted to such chamber.

67 designates guide rollers suitably carried by the frame to guide the casing 16 during its revolution.

The operation will now be readily apparent to those skilled in this art and is as follows:--

The pipe 48 is in communication with a suitable source of supply of sulphur dioxide. The pipe 46 is in communication with a source of steam supply. The pipe 50 is in communication with the rendering tank and the pipe 52 leads to the atmosphere. The apparatus is now started and the revolution of the shaft 5 owing to the provision of the worm 7 and the gear 10 meshing therewith drives the shaft 9 and thereby the pinion 10 thus revolving the gear 11 and the casing 16 to which it is connected.

Assuming now that the casing 16 has revolved into a position which will bring a port 55 into register with the port 61 of the valve head 32, the sulphur gas will pass from the pipe 48 through the passage 17 in-the valve head ll through the passage 60 in the valve stem and port 61 in the valve head through a port 55 in the valve cover 23 and thence through a pipe 56 into a chamber 22. This will continue during a desired interval in the rotation of the easing since the port 61 is elongated, see Figure 8. The continued revolution of the easing 16 will bring the port 55 of the chamber 22 into which the sulphur gas has been admitted out of register with the port 61 and into register with the elongated port 58 which communicates by means of the port 54: in the valve head 32 with the steam chamber 27 so that the steam is introduced into the chamber 22 into which the sulphur dioxide has been introduced.

The next step in the rotation of the casing 16 brings the chamber 22 containing the sulphur gas and steam into a position to cause the port 59 of such chamber to register with the port 52 of the valve head so that the sulphur gas and steam can pass through the passage 63 in the valve stem, passage 49 in the valve head andpipe 50 to the rendering tank. At this time the port 58 is still in communication with the steam chest so that the sulphur dioxide is passed into the rendering tank through the pipe 50 and additional steam is also passed through the pipe 50 so that as the casing 15 revolves and the port 59 passes out of register with the port 62 the chamber 22 from which the sulphur dioxide has been discharged is full of steam and this steam must be exhausted before another charge of sulphur dioxide passes into this chamber 22. The continued revolution of the casing 16 brings the port 59 of such chamber into register with the port 64 so that the steam can exhaust to the atmosphere through passage 55 and pipe 52. The continued revolution of the casing 16 brings the chamber 22 from which the steam has been exhausted into position to have its port 55 register with the port 61 of the valve head 32 and the sulphur charge is introduced and the operation which has just been described is repeated through the same cycle as before.

I preferably provide a leak or bleeder port 66 so that in case the steam has not been fully exhausted from the chamber 22 there will not be suflicient pressure to prevent the introduction of the sulphur charge which is ordinarily under a lower pressure than the steam when being introduced into the chamber 22. I

It will be apparent from the foregoing that in accordance with my present inven' tion, I provide novel means for automatically introducing into the rendering tank or other mechanism a mixture of different fluids which may be of either a liquid or a gaseous nature.

By varying the effective length of the various ports either in the valve head or the cover 23, it will be apparent that the time at which the diflerent fluids are introduced into a chamber 22 may be varied and also the volume or quantity of such fluids which are introduced into such chamber 22. Any desired number of chambers or compartments 22 may be employed in accordance with the conditions and requirements met with in practice.

In accordance with my present construction while one chamber is being filled with a charge of sulphur dioxide a chamber containing a charge of sulphur dioxide is having steam introduced into it, a chamber containing a charge of sulphur dioxide and steam is discharging and a chamber con taining only the steam is discharging to the atmosphere so that the fluid charges can be formed and passed to a desired point of utilization in a minimum of time. It will of course be understood that where I use the terms steam, sulphur dioxide and sulphur this is only by way of explanation of specific fluids which may be employed, it being apparent that any desired fluids may be commingled to form the charge which is automatically delivered to a desired point of utilization.

It will now be apparent that I have devised a new and useful apparatus for feeding sulphur dioxide or other materials in a fluid or gaseous condition which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have in the present instance, shown and described a preferred embodiment thereof which will give in practice satisfactory and reliable results, it is to be understood that such em- 'I claim as new anddesire to secure by Let ters Patent, is:

1. In a device of the character stated, a casing having a. fluid receiving chamber, means to move said casing and means to ef-. fect during the movement of said casing the introduction of a fluid into its chamber, thenv the introduction of another fluid into the inner end portion of said chamber,then the discharge of both fluids and finally the exhaust of anIy fluid remaining in said chamber.

- casing having a fluid receiving chamber,

means to move said casing, and means automatically controlled by the movement of said casin to eflect first the introduction of the fluid into said chamber, then the introduction of another fluid into the inner end portion of said chamber and the discharge of both fluids from said chamber by the action of one of said fluids.

3. In a device of the character stated, a rotatable casing having partitioning members contributing to form a series of closed chambers each provided with an inlet and an outlet port, means to continuously revolve said casing, and valve mechanism co-operating with said ports to effect the introduction into each chamber of a plurality of fluids and the discharge from said chambers of said fluids.

I 4. In a device of the character stated, a casing rotatably mounted and having partitioning members contributing to form a plurality of chambers,each provided with an inlet and an outlet port, means to revolve said casing, a stationary valve having ports and passages controlling the admission to and exhaust from said chambers during the rotation of said casing, certain of said ports and passages co-operating to effect the discharge of a plurality of different fluids from each chamber.

5. In a device of the character stated, a rotatable casing having a plurality of compartments each provided with an inlet and an outlet port, a pipe connected with said inlet port having its discharge end near one end of said casing, means to revolve said casing, astationary valve having ports and passages co-operatlng with the ports of said casing to automatically control the introduction of fluid into a chamber, then the introduction of another fluid into the same chamber, then the exhaust of both fluids from said chamber, and a continuous flow of one fluid a device of the character stated, a

therethrough, and lastly the final exhaust 'end and each provided with an inlet and an outlet port, a stationary valve having fluid passages and ports into register with which the ports in saidcasing are brou ht at the proper time to effect the successive introduction of difl'erent fluid charges into .a chamber and the simultaneous discharge of all of the fluids in the chamber.

7. In a' device of the character stated, a casing rotatably mounted having partitioning members contributing to form a series of chambers each provided with an inlet and an outlet port, means to revolve said casing, a valve contributing with said casing to form a steam chest, means to introduce steam into said steam chest, said valve having a port to control the introduction of steam into a chamber during a predetermined period of the rotation of the casing, said valve having a port controlling the introduction of sulphur dioxide into said casing, a source of sulphur dioxide supply in communication with the last mentloned port, said valve also having passages, and. a port controlling the passage of the steam and sulphur from the chamber into which it has been introduced. Y

8. In a device of the character stated, a casing rotatably mounted and having a se ries of chambers each provided with an inlet and an outlet .port at one end, a pipe communicating with an inlet port-aid having its discharge end near the opposite endof its respective chamber, a stationary valve having a plurality of fluid inlets, a discharge port and passage, and an exhaust port and passage into register with which the casing ports are brought at the proper time.

9 In a device of the character stated, a casing having a series of chambers, means to introduce a fluid into one of said chambers, means to move said casing, means to introduce a second fluid .into the chamber in which the first fluid has been introduced, means to discharge both fluids from such chamber without cutting out the source of supply of one of such fluids to said chamber, and an atmospheric vent into operative relation with which each chamber is moved after the discharge has taken place from a chamber.

- CHARLES W. HOTTMANN. Witnesses:

H. S. FAIRBANKS, F. A. NEWTON. 

